Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 115, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Aug 4, 2023, 3:16 PM EDT for 5 counties in Pennsylvania. It was in force for 59 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 4, 2023, 3:16 PM EDT (19:16 UTC)
- Expired
- Aug 4, 2023, 4:15 PM EDT
- In force
- 59 min
- Issued by
- NWS State College, PA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Centre County, PA, Juniata County, PA, Mifflin County, PA, Snyder County, PA, Union County, PA
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 4, 12:10 PM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 7.3 hours before the alert went out and 265 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1103 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 734 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 64 m²/s²
- 0-3 km storm-relative helicity
- 76 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.1
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS State College, PA wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 4, 2:45 PM EDT, 31 minutes earlier.
Area forecast discussion, Aug 4, 2:45 PM EDT, 31 minutes before
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</html>Hazardous weather outlook, Aug 4, 12:13 PM EDT, 3 hours 3 minutes before
Hazardous Weather Outlook National Weather Service State College PA 1213 PM EDT Fri Aug 4 2023 PAZ006-012-018-019-027-028-037-041-042-045-046-049>053-056>058- 051615- Potter-Northern Clinton-Northern Centre-Southern Centre-Mifflin- Juniata-Tioga-Northern Lycoming-Sullivan-Southern Clinton- Southern Lycoming-Union-Snyder-Montour-Northumberland-Columbia-Perry- Dauphin-Schuylkill- 1213 PM EDT Fri Aug 4 2023 ...SEVERE THUNDERSTORM WATCH 584 IN EFFECT UNTIL 8 PM EDT THIS EVENING... This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...This afternoon and tonight. Please listen to NOAA Weather Radio or go to weather.gov/StateCollege on the internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Severe thunderstorms with damaging winds 60 mph or greater and large hail exceeding 1 inch in diameter are possible in a few spots Monday afternoon or early evening. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. PAZ011-051615- Cameron- 1213 PM EDT Fri Aug 4 2023 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...This afternoon and tonight. Strong thunderstorms with gusty winds and small hail are possible this afternoon or early evening. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Severe thunderstorms with damaging winds 60 mph or greater and large hail exceeding 1 inch in diameter are possible in a few spots Monday afternoon or early evening. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. PAZ004-005-010-017-024-033>036-063>066-051615- Warren-McKean-Elk-Clearfield-Cambria-Somerset-Bedford-Fulton- Franklin-Cumberland-Adams-York-Lancaster- 1213 PM EDT Fri Aug 4 2023 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...This afternoon and tonight. Strong thunderstorms with gusty winds and small hail are possible this afternoon or early evening. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Severe thunderstorms with damaging winds 60 mph or greater and large hail exceeding 1 inch in diameter are possible in a few spots Monday afternoon or early evening. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. PAZ025-026-059-051615- Blair-Huntingdon-Lebanon- 1213 PM EDT Fri Aug 4 2023 ...SEVERE THUNDERSTORM WATCH 584 IN EFFECT UNTIL 8 PM EDT THIS EVENING... This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...This afternoon and tonight. Please listen to NOAA Weather Radio or go to weather.gov/StateCollege on the internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Severe thunderstorms with damaging winds 60 mph or greater and large hail exceeding 1 inch in diameter are possible in a few spots Monday afternoon or early evening. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Special weather statement, Aug 4, 2:19 PM EDT, 57 minutes before
Special Weather Statement
National Weather Service State College PA
219 PM EDT Fri Aug 4 2023
PAZ012-041-046-041900-
Southern Lycoming PA-Northern Clinton PA-Northern Lycoming PA-
219 PM EDT Fri Aug 4 2023
...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN LYCOMING AND NORTH
CENTRAL CLINTON COUNTIES THROUGH 300 PM EDT...
At 218 PM EDT, Doppler radar was tracking a strong thunderstorm 16
miles north of Lock Haven, moving east at 30 mph.
HAZARD...Wind gusts up to 50 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.
Locations impacted include...
Williamsport, Montoursville, Jersey Shore, Duboistown, Elimsport,
Waterville, Cogan Station, Cammal, English Center, Trout Run, Little
Pine State Park, Loyalsockville, South Williamsport, Garden View,
Salladasburg, Little League World Series Complex and Williamsport
Airport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
north central Pennsylvania.
&&
LAT...LON 4134 7762 4148 7746 4135 7688 4110 7699
TIME...MOT...LOC 1818Z 288DEG 28KT 4137 7750
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH
MartinSpecial weather statement, Aug 4, 2:41 PM EDT, 35 minutes before
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</html>Local storm report, Aug 4, 2:57 PM EDT, 19 minutes before
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</html>Special weather statement, Aug 4, 3:00 PM EDT, 16 minutes before
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</html>Special weather statement, Aug 4, 3:05 PM EDT, 11 minutes before
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</html>Special weather statement, Aug 4, 3:09 PM EDT, 7 minutes before
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</html>The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 4, 1:01 PM EDT | Special Weather Statement | CTP | Potter | 44 min |
| Aug 4, 1:12 PM EDT | Special Weather Statement | CTP | Tioga | 48 min |
| Aug 4, 1:16 PM EDT | Special Weather Statement | CTP | Cameron | 59 min |
| Aug 4, 1:36 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Tioga | 39 min |
| Aug 4, 1:44 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton | 46 min |
| Aug 4, 1:53 PM EDT | Special Weather Statement | CTP | Clinton | 37 min |
| Aug 4, 2:11 PM EDT | Special Weather Statement | CTP | Lycoming | 49 min |
| Aug 4, 2:11 PM EDT | Special Weather Statement | CTP | Clearfield | 34 min |
| Aug 4, 2:16 PM EDT | Special Weather Statement | CTP | Cambria | 29 min |
| Aug 4, 2:19 PM EDT | Special Weather Statement | CTP | Lycoming | 41 min |
| Aug 4, 2:27 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton | 48 min |
| Aug 4, 2:41 PM EDT | Special Weather Statement | CTP | Centre | 34 min |
| Aug 4, 3:00 PM EDT | Special Weather Statement | CTP | Lycoming | 30 min |
| Aug 4, 3:05 PM EDT | Special Weather Statement | CTP | Blair | 40 min |
| Aug 4, 3:09 PM EDT | Special Weather Statement | CTP | Snyder | 51 min |
| Aug 4, 3:11 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Montour, Northumberland, Union | 49 min |
| Aug 4, 3:18 PM EDT | Special Weather Statement | CTP | Centre | 42 min |
| Aug 4, 3:47 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Huntingdon, Mifflin | 31 min |
| Aug 4, 3:50 PM EDT | Special Weather Statement | CTP | Lycoming | 40 min |
| Aug 4, 3:58 PM EDT | Special Weather Statement | CTP | Montour | 32 min |
| Aug 4, 4:06 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Montour, Northumberland, Schuylkill | 17 min |
| Aug 4, 4:19 PM EDT | Special Weather Statement | CTP | Perry | 41 min |
| Aug 4, 4:39 PM EDT | Special Weather Statement | CTP | Cumberland | 36 min |
| Aug 4, 4:55 PM EDT | Special Weather Statement | CTP | Dauphin | 35 min |
| Aug 4, 4:58 PM EDT | Special Weather Statement | CTP | Clinton | 32 min |
| Aug 4, 5:08 PM EDT | Special Weather Statement | CTP | Cumberland | 52 min |
| Aug 4, 5:23 PM EDT | Special Weather Statement | CTP | Union | 52 min |
| Aug 4, 5:29 PM EDT | Special Weather Statement | CTP | Lebanon | 31 min |
| Aug 4, 5:48 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Franklin, York | 42 min |
| Aug 4, 6:04 PM EDT | Special Weather Statement | CTP | Lycoming | 26 min |
| Aug 4, 6:15 PM EDT | Special Weather Statement | CTP | Huntingdon | 30 min |
| Aug 4, 6:24 PM EDT | Special Weather Statement | CTP | Mifflin | 36 min |
| Aug 4, 6:27 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Franklin, Huntingdon, Juniata, Mifflin, Perry | 48 min |
| Aug 4, 6:30 PM EDT | Special Weather Statement | CTP | Lycoming | 30 min |
| Aug 4, 7:18 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Franklin | 42 min |
| Aug 4, 7:56 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Franklin | 33 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2023Every severe thunderstorm warning in 2023
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.